package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.mapper.UserMapper;
import com.itheima.reggie.service.UserService;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;

@Service
public class UserServiceImpl extends ServiceImpl<UserMapper,User> implements UserService{

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @Override
    public R<String> sendMsg(User user, HttpSession httpSession) {
        String userPhone = user.getPhone();
        if (StringUtils.isNotEmpty(userPhone)) {
            //生成随机的4位验证码
            String code = "1";
//            String code = ValidateCodeUtils.generateValidateCode(4).toString();
//            log.info("code={}",code);
//
//            //调用提供的短信服务API完成发送短信
//            SMSUtils.sendMessage(userPhone, code);

            //需要将生成的验证码保存到Session
            httpSession.setAttribute(userPhone,code);
            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param httpSession
     * @return
     */
    @Override
    public R<User> login(Map map, HttpSession httpSession) {
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从session中获取保存的验证码
        Object codeInSession = httpSession.getAttribute(phone);
        //进行验证码的对比（页面提交的验证码和Session中存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            //如果呢能过比对成功，说明登录成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone, phone);
            User user = this.getOne(queryWrapper);
            if (user == null) {
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                this.save(user);
            }
            httpSession.setAttribute("user", user.getId());
            return R.success(user);
        }
        return R.error("登录失败");
    }

    /**
     * 移动端用户退出
     * @param res
     * @return
     */
    @Override
    public R<String> loginOut(HttpServletRequest res) {
        //清理Session中保存的当前登录员工的id
        res.getSession().removeAttribute("user");
        return R.success("退出成功");
    }
}
